Re: INTERSECT and EXCEPT Design

Jack Klebanoff wrote:
> RPost wrote:  
> > ...
> > Anyway, I think you meant to compare UNION (or UNION ALL) and 
> > INTERSECT here (as you did EXCEPT/INTERSECT below this) to illustrate 
> > the higher precedence of INTERSECT.
> Yes. I included the UNION/UNION ALL example because it is important to 
> get the associativity right even in the UNION case. I have updated my 
> paper (attached) to say so explicitly, and include an example with UNION 
> and EXCEPT.
...
It's now here: 
http://incubator.apache.org/derby/papers/Intersect-design.html

 -jean